GradeThread: Grade & List

Name: GradeThread: Grade & List
Author: Pearson Media

AI condition reads while you shop eBay, Poshmark, Grailed, Mercari, Depop & Vinted — plus cross-listing for FlipDesk sellers.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-07-29

Version:

0.3.7

Last updated: 2026-07-27

Features & Capabilities

GradeThread gives you an independent, AI-powered condition read on any pre-owned clothing listing — before you buy — and, for resellers, one-click cross-listing to your other marketplaces.

SHOP SMARTER — free, no account needed Open a listing on eBay, Poshmark, Grailed, Mercari, Depop, or Vinted and click "Get condition read." GradeThread's AI reads the listing photos and gives you: • A 1–10 condition score with a confidence level • A flag when the seller may be over-grading the item • Condition-adjusted price fairness • Which photos to ask the seller for before you buy

SELL FASTER — for FlipDesk sellers Cross-post your FlipDesk drafts to Poshmark, Mercari, and Grailed. The new-listing form is prefilled in your OWN logged-in browser tab — you just review and click List.

YOUR SESSIONS STAY YOURS No "cookies" permission and no access to your marketplace accounts. Condition Check sends only the public listing photos already on the page to GradeThread's grading service; nothing is stored on our servers, and your recent reads stay on your device. Cross-listing runs entirely in your browser — GradeThread never sees your marketplace password or cookies.

Buyer research is free for everyone. Seller cross-listing unlocks with an active FlipDesk plan at gradethread.com.

User Growth & Download Statistics

Add-on

By:

Pearson Media

Daily users:

Version:

0.3.7 Last updated: 2026-07-27

Version code:

6378929

Creation date:

2026-07-13

Risk:

Permissions:

Host permissions:

https://gradethread.com/*
https://*.gradethread.com/*
https://*.poshmark.com/*
https://*.mercari.com/*
https://*.grailed.com/*

Content scripts matches:

gradethread.com
*.gradethread.com
*.ebay.com
*.ebay.co.uk
*.ebay.de
*.ebay.ca
*.ebay.com.au
*.ebay.fr
*.ebay.it
*.ebay.es

Size:

450.46KB

Email:

su*****@gradethread.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-29

Compare stats and ranking:

Ranking

# 142,227 ▲ 1,264

Other rankings

#10 in poshmark keyword 16 #131 in depop keyword 9 ▼ 1#165 in upgrade keyword 32 ▼ 2

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Pearson Media

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/gradethread-grade-list/

Email:

su*****@gradethread.com

Website:

https://gradethread.com

Permission Change History

2026-07-28: Version 0.3.5 → 0.3.7

Add Permissions: alarms

Is GradeThread: Grade & List Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

GradeThread: Grade & List requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: gradethread.com, ebay.com, co.uk, ebay.de, ebay.ca, com.au, ebay.fr, ebay.it, ebay.es, ebay.ie, ebay.nl, ebay.at, ebay.ch, ebay.pl, ebay.be, poshmark.com, poshmark.ca, grailed.com, mercari.com, depop.com, vinted.com, vinted.fr, vinted.de, vinted.es, vinted.it, vinted.nl, vinted.pl, vinted.lt, vinted.cz, vinted.be, vinted.at, vinted.ro, vinted.hu, vinted.sk, vinted.pt, vinted.se, vinted.lu, vinted.hr, vinted.gr, vinted.dk, vinted.fi
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

GradeThread: Grade & List is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****